---
title: Meltano Concepts
description: Information about Meltano Concepts.
layout: doc
toc: false
---

:::info

  <p><strong>Contributions are welcome!</strong></p>
  <p>If there's a document you want to see that's not here, we welcome contributions to add it! Submit a <a href="https://github.com/meltano/meltano/tree/main/docs">pull request</a> with your doc and the Meltano team will help you polish it for release. You may also <a href="https://github.com/meltano/meltano/issues/new">submit an issue</a> to help us gauge interest in new docs.</p>
:::

## Index

<ul>
<li><a href="/concepts/project">Projects</a></li>
<li><a href="/concepts/plugins">Plugins</a></li>
<li><a href="/concepts/state_backends">State Backends</a></li>
<li><a href="/concepts/environments">Environments</a></li>
<li><a href="/concepts/python_virtual_environments">Python Virtual Environments</a></li>
<li><a href="/concepts/elt">ELT vs ETL</a></li>

</ul>
